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METHOD FOR DETERMINING A POSITION CHANGE OF A TOOL AND THE TOOL AND THE TOOL CONTROL UNIT

  • US 20130081293A1
  • Filed: 09/18/2012
  • Published: 04/04/2013
  • Est. Priority Date: 09/20/2011
  • Status: Abandoned Application
First Claim
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1. A method for determining a position change of a handheld tool (1) in space, the method comprising:

  • alignment of an initial tool position with a reference position in order to determine at least a first position vector of the tool, at least one component of the first position vector being determined by the measurement of a component of the gravitational acceleration in the direction of a predetermined axis of the tool (1);

    establishing a modification of the tool position during an actual position change of the tool (1) in space by determining at least one angular discrepancy of a newly determined, second position vector of at least one temporally preceding position vector, at least one component of the second position vector being determined after the position change by measuring the component of the gravitational acceleration in the direction of the predetermined axis of the tool; and

    providing information which relates to the orientation of the tool (1) and which is established from the at least one angular discrepancy.

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